Hadron Sources and LINACs Physicist (BE-ABP-HSLGRAP)

You will join a team working on sources and LINACs beam dynamics this position you will take charge of Linac4 source extraction studies design and measurements. This includes the implementation of existing models in Xsuite and benchmark with TraceWin and Travel codes.

Your responsibilities

• Get familiar with linac beam dynamics codes and the existing machine models under HSL section responsibility.
• Study the Linac4 source extraction. Propose and implement new designs aiming at reducing the transverse beam emittance and increasing the beam current into the RFQ acceptance. Qualify those at the source test stand with beam measurements.
• Implement the existing Linac4 models (Travel TraceWin Toutatis) in Xsuite. Proceed to a detailed code benchmark.

Your profile

• Experience in electromagnetic or accelerator simulations.
• Proven ability to work on both simulations and hands-on experiments.
• Demonstrated experience of work in the design and/or operation of particle sources for accelerators or a similar scientific field.
• Experience with one of the following codes would be an asset (Travel TraceWin Toutatis IBSIMU Xsuite).

Skills

• Knowledge of beam dynamics simulation.
• Knowledge of electromagnetic simulation tools (Opera CST Superfish etc...).
• Basic programming skills (Python C).
• Problem-solving mindset and ability to learn new tools.
• Spoken and written English with a commitment to learn French.

Eligibility criteria:

• You are a national of a CERN Member or Associate Member State.
• You have a professional background in Applied Physics Engineering (or a related field) and have either:
  • a Masters degree with 2 to 6 years of post-graduation professional experience;
  • or a PhD with no more than 3 years of post-graduation professional experience.
• You have never had a CERN fellow or graduate contract before.

Additional Information :

Job closing date: 11.03.2026 at 23:59 CET.

Contract duration: 24 months with a possible extension up to 36 months maximum.

Working hours: 40 hours per week

Job flexibility: Hybrid

Target start date: 01-May-2026

This position involves:

• Work in Radiation Areas.
• Stand-by duty when required by the needs of the Organisation.
• Exposure to electromagnetic fields under certain exposure conditions.

Given the occupational health risks associated with this position the selected candidate must obtain medical clearance before a contract offer is confirmed.

Job reference: BE-ABP-HSLGRAP

Field of work: Applied Physics

Benchmark job: 200140 - Applied Physicist

Global Benefits

• A monthly stipend between 6372-7004 Swiss Francs per month (tax free) depending on your degree.
• 30 days of paid leave per year plus 2 weeks annual closure.
• Coverage by CERNs comprehensive health insurance scheme (for yourself your spouse and children) and membership of the CERN Pension Fund.
• Family child and infant monthly allowances depending on your individual circumstances.
• A relocation package (installation grant and travel expenses) depending on your individual circumstances.
• Possibility to extend your contract up to 36 months.
• On-the-job and formal training including language classes.

Overview of CERN - Discover a world where the impossible is made possible!

At CERN the European Organization for Nuclear Research we are pushing the frontiers of science and technology. Our groundbreaking work brings together not only physicists but also a diverse range of professionals from engineering technical scientific and administrative fields. Together we foster an environment where innovation and collaboration thrive.

Every day we face exciting new challenges and opportunities to contribute to cutting-edge research that shapes our understanding of the universe. We meet these challenges through the diverse perspectives within our teams ensuring every contribution is valued and driving our shared sense of inclusion and purpose. Diversity is a core value of CERN since its foundation and it remains central to our mission and continued success.

If you are ready to be part of a dynamic inclusive community pushing the boundaries of knowledge CERN is the place where your curiosity and skills can thrive. Be part of our mission to uncover what lies at the heart of the universe! TAKE PART!

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Remote Work :

No

Employment Type :

Full-time